Electric-light-control system.



5. H.J'0RDAN ELECTRIC LIGHT CONTROL SYSTEM.

APPLICATION FILED FEB. 21. um.

Faten'ted Oct. 2, 1917.

15 HWENTUR at r/ Ill) ELECTRIC-LIGHT-CO'NTEOL SYSTEZE.

Specification of Letters Patent.

Patented Oct. 2, 19117.

Application filed February 21, 1917. Serial No. 149,999.

To all whom it may concern:

Be it known that l, lonx H. Jones), a citizen of the United States, and a resident of Scranton, in the county of liackawanna' and State of Pennsylvania, have invented a certain new and useful Improvement in l llectric-Light-Control Systems, of which inun'o-venlent the following is a specification.

This invention relates to a system for controlling electric lights, and more particularly where such lights are temporarily or intermittently required. In apartment houses and other like places where there is an all-night light service in the public halls, but only an occasional and temporary use ot the ligl'it is required, a great saving, may be etl'ected by means of my in'iprovement, hich automatically extinguishes the lights within a certain time interval after they have been turned on. The device is par ticularly adapted to be used in connection with a system where a time clock operates to shut off the lights in the public hallsat a predetermined. hour, leaving a temporary light circuit in potential use, which is controlled by said improvemei'it. This provides ;\illicieii.t light for a person arriving or leavinc; late at night, after the main light circuit has been turned off, to pass through the halls to or from the street, the temporary light circuit then being automatically turned oil, and effecting a great saving in electric current.v and a useless waste of burning, these lights all night, during; which time there is seldom any occasion to use them.

My improvement may be carried out in various ways, by en'iploying some form of mechanism operating automatically, after a certain time interval, to open the light circuit, and means for controlling" the closing of the light circuit and the starting of said mechanism.

In the accompanying drawings: Figure 1 is a view, partially in elevation and partially in section, showing one form of mechanism which is employed in the preferred form of my improvement; andl ig. 2,a dia grain of the circuits used in connection with this form of mechanism.

Referring; to Figs. 1 and 2, there is indi cated a mechanism CODlpI'lSlHP; a, spring motor device or clock works, 7, having a spring, 8, and on the Winding arbor, 9, or which is mounted le er, 10, preferably bellcranlr saapo, and having an arm connect-ed with the core, ll, of solenoid or coil,

The other arm of the lever carries a traveling contact, 13, adapted in one position to engage the contact, ll, oi the light circuit, 15, and in another position to pass oil' the contact, 13,0nto the insulation,1U,and-open the light circuit. The solenoid is contained in another branch circuit, 17, having manually operated switches, 18, for opening and closiu c the branch circuit to the solenoid. The light circuit contains a number of lamps, 19, one or more being supposed to be located on each floor in the halls of a building, and the switches, 18, which may also be located on each floor or at any convenient position for turning on the lights, are preferably of "the push button type for momentarily closing the circuit, and then automatically opening the same when the hand is removed.

The spring 8, of the motor device or clock mechanism is partially wound up and operates the mechanism until the lever, 10, is moved by said mechanism against the rest or stop piece, 20, when the mechanism stops. In this position of the lever, the light cir cuit is open. iVhen the solenoid is encrgized, the core, 11, draws the lever, 10, away from the stop, 20, and down to a position in which the contact, 13, engages contact, 14, and closes the light circuit. This movement of the lover also partially winds the clock mechanism which then starts into operation the instant that the solenoid is dei nergized. lf, therefore, a person wishes to pass tl'irough the halls, or for any other reason wishes to use the lights after they have been extinguished, he merely pushes one of the momentary switches, 18, which energizes circuit, 17, andithe solenoid, 12, to actuate the lever, 10, to close the light circuit, 15, and start the motor or clock mechanism into operation. This continues in operation dur ins,- a certain time interval, or until the lever, 10, is moved back against the stop,'20, at which time the contact, 13, has traveled on to the insulation, 16, and the light circuit is opened, thereby extiug'uishiuc the lights. As the clock mechanism is partially wound by the movement of the lever at each stroke of the core of the solenoid, it does not rcouirewinding by hand, and needs no attention but is always ready for action.

Having noW described my invention, what ll claim as new and desire to secure by Let ters Patent is:

1. in a time switch mechanism, the coni- A a switch, lever p5 tucked m0 the m0 "able meml switch, a clock mechanism posiixi meted with said levei continuously from. iis closed p0 Open position, :1 solenoid for acumin lever to close the switch, and a 1t(i switch for closing the ssienor. cult.

2. In a time switch mechanism open posmun, a sOLQncrid.

witch imchmLiam, h, a chick carrying the movzi'uie 111011 :1 stop for said. iOVJaI', 1:

1 ,I moans; i 

